8fge | pdb_00008fge

Structure of rat neuronal nitric oxide synthase R349A mutant heme domain in complex with 4-(difluoromethyl)-6-(5-(2-(dimethylamino)ethyl)-2,3-difluorophenethyl)pyridin-2-amine dihydrochloride

spinqualitylabelsall models 8fge, resolution 1.89Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8fge is a 1 chain structure with sequence from Rattus norvegicus. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: X-ray diffraction, Resolution 1.89Å Ligands: ACT, H4B, HEM, XVA, ZN Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Function NOS1_RAT Produces nitric oxide (NO) which is a messenger molecule with diverse functions throughout the body. In the brain and peripheral nervous system, NO displays many properties of a neurotransmitter. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum. Probably has nitrosylase activity and mediates cysteine S-nitrosylation of cytoplasmic target proteins such SRR. Inhibitory transmitter for non-adrenergic and non-cholinergic nerves in the colorectum. Publication Abstract from PubMed A series of potent, selective, and highly permeable human neuronal nitric oxide synthase inhibitors (hnNOS), based on a difluorobenzene ring linked to a 2-aminopyridine scaffold with different functionalities at the 4-position, is reported. In our efforts to develop novel nNOS inhibitors for the treatment of neurodegenerative diseases, we discovered 17, which showed excellent potency toward both rat (K(i) 15 nM) and human nNOS (K(i) 19 nM), with 1075-fold selectivity over human eNOS and 115-fold selectivity over human iNOS. 17 also showed excellent permeability (P(e) = 13.7 x 10(-6) cm s(-1)), a low efflux ratio (ER 0.48), along with good metabolic stability in mouse and human liver microsomes, with half-lives of 29 and >60 min, respectively. X-ray cocrystal structures of inhibitors bound with three NOS enzymes, namely, rat nNOS, human nNOS, and human eNOS, revealed detailed structure-activity relationships for the observed potency, selectivity, and permeability properties of the inhibitors. Potent, Selective, and Membrane Permeable 2-Amino-4-Substituted Pyridine-Based Neuronal Nitric Oxide Synthase Inhibitors.,Vasu D, Do HT, Li H, Hardy CD, Awasthi A, Poulos TL, Silverman RB J Med Chem. 2023 Jul 27;66(14):9934-9953. doi: 10.1021/acs.jmedchem.3c00782. Epub , 2023 Jul 11. PMID:37433128 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine.

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